An Younggil’s Pro Go Videos: DeepMind AlphaGo vs Lee Sedol – Game 2

This is a commentary of game two from the Google DeepMind Challenge Match.

It was played between AlphaGo and Lee Sedol 9p on March 10, 2016 in Seoul, Korea.

AlphaGo vs Lee Sedol – Game 2 of 5


Game record with variations


Download SGF File (Go Game Record)


Lee Sedol

Lee Sedol has won 14 world titles in his career, and was challenged by DeepMind because he has been the best Go player in the world over the last decade.

DeepMind AlphaGo

AlphaGo is an artificial intelligence which was developed by Google DeepMind.

In a previous match, AlphaGo defeated Fan Hui 2p 5–0, in October, 2015.

This is an historic match in Go, and it’s the first time that a computer program has challenged a human Go champion in an even game.

This video was recorded at the Sydney Go club in Sydney, Australia.

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About Younggil An

Younggil is an 8 dan professional Go player with the Korean Baduk Association. He qualified as a professional in 1997 and won an award for winning 18 consecutive professional matches the following year. After completing compulsory military service, Younggil left Korea in 2008, to teach and promote the game Go overseas. Younggil now lives in Sydney, Australia, and is one of the founders of Go Game Guru. On Friday evenings, Younggil is usually at the Sydney Go Club, where he gives weekly lessons and plays simultaneous games.

You can follow Go Game Guru on Facebook, Twitter, Google+ and Youtube.


  1. Kaan Malçok says:

    Thank you for the educative commentary An! Are you planning on doing a video commentary of another game between Lee Sedol and AlphaGo? Especially now that Lee Sedol has won a game?

    • Younggil An says:

      Hi Kaan, yes, I’m going to comment another game, and I’ll upload next week. Thanks!

  2. In the final comment of the game above, a typo reads:
    “I’m going to comments other games of this Google Deed Mind Challenge Match on Go Game Guru.”

    Deed vs Deep

  3. You should play out the ladder completely. It’s working for white, because it wraps around:

  4. Waiting commentary about other 4 games, it’s so cool to learn from this games about fair play, pros and cons of both sides =)

  5. Christophe says:

    In this video you’re speaking about a ladder around the 21st minute of the video which is not working. I stopped the video to read it out to the end and it appeared to me as it was actually working. Since you said it wasn’t I wanted to make sure. I set the position and play the ladder to the end. The white stone put on the M12 point conntecting to an other white stone makes the job. When white plays O15, forcing black to bump against the Q14 stones, she can follow up with P15. Black descends and atari at P13 (as you saw it) but it’s actually not a problem. White atari at P12. Black captures and white kill the dragoon with Q13.

    • Christophe says:

      Well it has been pointed out already by Jeff. Sorry I should have read the commentaries before posting. Please don’t take my remark in count and keep doing awesome videos about go 🙂

  6. Flagellator1974 says:

    In the video we can see the fourth match. But the game record is the second.